Steam-superheater.



E. H. POSTER. ITEM! mmm APPLIOAIOI III!) III. 18. 1.00.

963,732. MM July 5,1910.

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UNITED STATES PATENT OFFICE.

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' snau-aurnmtam 903,732. mem unnmnhmz PatentedJuly 5, "H0.

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To all when it my concern: course of the furnace gaaee is therefore rear- Be it known that I, Baum H. Fos'rsn, a ward under the drum A to the stack opencitizen of the ;United States, residing at ing B. The boiler is mounted in the usual New York in the county of Richmond and scttin havm side walls 0, 0., a rem owl to State of l lew York, have invented rennin well i, and t wall the latter hnvnew and useful Improvements in Stea'i'm ing thecustom b ning'c for the furnace Super-heaters, of which the following is a door. The so ea isconstructcd in two in'the arrangement of a direct passage of the servioe mai c gpscification, reference being had to the sections or parts, mounted on o posito sides rawinga accompanying and forming part of and about on alevel with t o drum A. to of the same. One of the sinner-heater sections is shown at In s certain class of superheaters the hot S. The super eater are incloscd by gases from the firebox are brought directly suitable brick'or tile work as s, and are to the superheater chamber, in order that as supported by hangers II-of lj-sha depend little of-the heat as possible may he abing from crom-beamea' exten in trnnsstracted from said gases before reaching the versely over the drum A. At the orw'urd' au eater. I ends of. the superheater chambers are hinged present inventign is an improvement closers a, by which the an ester sections in evlces of this general class and in its may be convenientl ed for cleaning,

referred form consistsf islthf proeyiision lot :tic. set of the t headers is comiectuse or p pre era ocat in t e w t a ipe 'ng steam to hem side walls 0L lie boiler setting for conductfrom the (If-um k, whfie' the other set of ing the auperh'eeting gas from the furnace front headers is connected-with an outlvt to one endof the super-heater chamber, and pipe i, to deliver the an eated steam to onneegd to the coupling communication from the opposite end of the a". mng a a int to the rear of the superheater chamber to a int between a grate below the b, and extending part of the boiler and the c imn whereby vertically to and discharging into the tumor the natural draft is-made availab to carry ter casing or setting, is a line or passage X imcooled gaseethrmgh themperheatercham- -F. This flue is pen to the furnace below her in a more effective manner than has the hole b, so that it will receive gases of heretofore been accomplished bythe devioes' very h' temperature. The gases received in use. I by the no areiisaied thereby into the su- The invention involves also other details perheater, chambertat the rear end thereof, which will be described by reference to the and paaa jprward through the chamber to annexed drawing. I the exit e, from which the flow into Figure 1 is a side elevation of a water the current 0 gases to thestaclr. hcsu rtube boiler, the setting being in section, heater is thus supplied with gases of hiqll showing a superheater section and the due temperature, no mattet' how, much heat flu or pnsssge for conveying to it,hot gum boiler may trike from? the current passingfrom the furnace. F1 ,2 and 8 am crom around tho tubes and battle plates. Th Sections on lines Il.- and lll.'III., re- 'su eater flue is referably made in the spectivoly, of Fig. 1. Fig. 4 is ngido clevaai e wall of the boi or setting, a'fluo being tron of'nnolhcr type of water tube boiler, provided for 0h luperhontcr section, an showingthc sum-.rlwntcr and one of the dues shown clearly in' Figs. 2 and 3. For tho 1"! therefor. Fig. 5 is usoction on line VIll.--- purpose of rcgulntin'g the flow of gasps VIII. of Fig. 4. through the superhcater chambers, theoute Ytcfm'rin' now more particularly to Figs. lot openings thereof may be provided with 1. 2 and 3, liudicntvs the drum of the boiler. dampers, one of which is shown at (1, oper- Dcpcnding therefrom are the water legs ated in aay,oonvenient way, as by e rod a. (1., between which are the water tubes 0 d extending outside of the setting. ll is the furnace grate, and above the new, tn the arrangement illustrated, in FI;ZM. i-xionlling rcnrwurdly from the front water 4 and h, the superheuter is located close 41; log a. is n lmt'llo pinto I), located above the the drums A, so as to leave suilicient epiioot, mvt'rnmsl. no: ics of water utu-s. Extending above the vertical bsflie b for the free pa forwardly from the roar log a, above thesage of the furnace gases. The superhi-m-t l'l st S ries of tubes, is u bottle 5. The is inclosed by a bottom plate 31, a top pi h- BEST AVAILABLE mPY and a front end-wall g. bottom plates extend from side boiler setting, and rearw' ardly to the cat.

'.wall' g in and by which the rear hash *of; the superheater are supported.

At center of the rear end of the bottom an exit 0 i Y described the au tend from the rear 0 the te.and discharge into the forward en of the auper heater casing. The hot gases then low rearwand]; and esca through the outlet opening 0 where t ey join the furnace flowi battlesand b. In this case also, the log of gases may be controlled by one or more dampers, 'not shown.

Numerous other embodiments of the invention might be illustrated, but those already described are suficient to show clearly the essential principle of the invention, whereby the superheater is supplied with furnace gases which have given u substantially nime of their heat to other e ements of the J ant. It will be clear to the skilled engineer who undertakes to a iply my invention in practice that it may utilized in a greit variety of \\u \'s without departure/from its proper 3" )L.

\ hat I claim is:

1. The combination with a boiler setting and furnace. and a water tube boiler hst' its water tubes arranged in the path of furnace gases flowing through said setting, of ll superheater located above the-water tubes. and oneior more fines or conduits in the side walls of the setting. extending from the furnace and discharging hot gases therefrom upon the superheater, as set forth.

topand toaideofthe.

downwardly between the vertical 2.'The combination with a boiler setting and films and a water-tube boiler having its water to arranged in the path of the furnace gases flowing thro h the setting, of a in teacast wit in the setting and above water tu In or conduits in the side walls of the setting, extending tfo the said casing from the said casing ving an outlet opento discharge into the current Ewing through the setting, as set 8. The combination with a boiler setting and furnace. and a water tube boiler having its water tubes-arranged in the path of the furnaces ses flowing through the setting, of ash seater chamber in roxitnity to a side of the setting and a )0! the water tubes, a superheater inclosed b the chamher, and one or more flues in t 1e said side wall of the sett' extending upwardly from the furnace and tscharging hot gases therefrom u the superheater, as set forth.

4. Eff combination with a boiler setting and mace, and water tube boiler having its water tubes arranged in the path of the furnace gases flowing throu it said setting, of a superheatpr located 2 ve the water tubes, a casing inclosing the superheater, and one or more'flues or conduits in a side wall of the setting, extending from the furnace to one end of the casing, said casing having an outlet opening at tts other en arranged to lischa into the current of gases flowing throng the setting.

ERXEST H. FOSTER Witnesses:

M. Lawsox Dnza, S. S. Dt'xtuat.

, and one or more 

